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SPIN HANDLE TORQUE
LIMITING EXTENSION SET
TKSH6
TKSH6 TORQUE LEVELS WITH YOUR IMPACT
The TKSH6 Spin Handle Torque Limiting Extension Set is calibrated from the factory and therefore it
is static. Because the torque level is determined when machined, it cannot change and the user
must calibrate how they use, and what they use with the extensions below to obtain the desired
torque level.
Explanation
Use a torque wrench with the adapter to torque a lug nut to the level you wish to limit torque to.
Mark with chalk or a paint pen on the lug nut and the face of the hub or wheel at the same location.
Remove the lug nut with a breaker bar. Select the TKSH6 extension whose rating matches closest to
the level you torqued the lug nut to. Install your impact socket and attach to your impact gun.
1.Torque
Set your impact to the middle power level and install the lug nut on with the torque limiting extension
until it appears to stop rotating (usually 1-2 seconds). Visually check if the marks on the lug nut and
hub or wheel face align. If the mark is not rotated far enough, remove the lug nut, increase the power
level and perform the test again until the power level of your impact reliability hits the mark you made.
If the mark rotates too far do the opposite. Once determined, always use this air pressure and power
setting.
2. Test
3. Adjust
4. Select
If in the less common instance that your impact gun at its lowest power setting is too high, or at the
highest power setting too low, and you are still unable to align your test marks closely enough and
adjusting air pressure supply is not an option consider these solutions:
A) Modify the mass of your extension. This can be done by choosing a different impact socket, for
instance deep vs. shallow. More mass will increase the calibration torque level of the whole tool.
B) Use a different impact gun if available. Power level has some effect, but IPM (impact per minute)
is the primary determinant of how close the extension will perform to its stated value from the
factory. An impact gun with a higher IPM will not allow a torque limiting extension to rotate back
and fight against the impact gun.
C) Ensure you are not over impacting the extension (i.e longer than around 2 seconds).
Depending on the impact gun and/or socket you need to use to get the job done on a daily basis, if
the torque range you wish to hit is still not obtainable, you may need to use a different torque
extension from the set. For instance, if through testing you determine your 90 ft. lb. stick is always
10 ft. lbs. low with your set-up it would not be uncommon to need to use the 100 ft. lb. extension from
then on, as long as the results are consistent. Consistent repeatable results are the intention of the
product in order to ensure it does not go over a certain value. Reaching specific torque values is meant
to be done with a torque wrench.
5. Always
Finish With
A Torque
Wrench
As mentioned above, this set is designed solely to LIMIT torque. It is not designed to hit a specific
torque range of your choosing, this task should always be done with a torque wrench. For example,
if you're wishing to torque a vehicle's lug nuts to 100 ft. lbs., the 80 or 90 ft. lbs. extension might be a
good choice to quickly install the wheels on the car and ensure in doing so, you will not exceed the
recommended torque level. Once the car is on the ground, torque the lug nuts to the final
100 ft. lbs. with a calibrated torque wrench.
Using this tool as the only method to fasten bolts and nuts with a required torque value is not
recommended and the user does so at their own risk.
